Measurement units for

However, even after such simplifications the number of factors determining the yield of nitric oxide still remains large. The aim of the similarity theory consists in deducing the relationships between the quantities of interest in a simple form convenient for experimental investigation. The first step consists in computing the nitric oxide content [NO] at the theoretical temperature. This quantity which is expressed in terms of 0 2, N2, B, E, Tm provides a natural measurement unit for the yield of nitric oxide NO in the explosion products. We can thus define the dimensionless yield as the ratio NO/[NO],... 

The standard deviation of a set of data, usually given the symbol 5, is the square root of the variance. The difference between standard deviation and variance is that the standard deviation has the same units as the data, whereas the variance is in units squared. For example, if the measured unit for a collection of data is in meters (m) then the units for the standard deviation is m and the unit for the variance is m2. For large values of n, the population standard deviation is calculated using the formula ... 

Farad — Si-derived measurement unit for -> capacitance. Symbol F (named in honor of the British physicist and chemist - Faraday). 

In a chemistry laboratory, the metric system of measurement is used rather than the more familiar English system. The most common measurement unit for mass is the gram, not the pound. The most common measurement unit for volume is the milliliter, not the cup. One milliliter of water is a little more than half a tablespoon of water. One milliliter (abbreviated mL ) of water weighs approximately one gram (abbreviated g ). 

The original measurement units for the impact indicators will normally be quite different some maybe numerical, while others are in the form of a series of classes. At this point in the analysis, therefore, the environmental impact assessor should convert the scale into a comparable set using some system of... 

The majority of statistical calculations and resulting decisions arc based on sample estimates for. y, S , and S. In certain circumstances the true values are known and slightly different procedures are used for statistical decisions. The standard deviation gives an estimate of the dispersion about the central value or mean in measurement units. For a normal distribution the interval of a about the mean /a will contain 68..1 percent of all values in the population the 2a interval contains 95.5 percent, and the .V interval contains 99.7 percent. A relative or unit-free indicator of the dispersion is the coefficient of variation ... 

Note 1 For this definition, a reference can be a definition of a measurement unit through its practical realization, or a measurement procedure including the measurement unit for a non-ordinal quantity, or a measurement standard. 

In the situations in which the units used for the energy and potentials are the electron-volts, the measurement unit for the orbital strength is Volt per electron, i.e., the same size as the electric capacity. This analogy allows a better intuition of the physical—chemical significance of the chemical hardness in the charge transfer processes and the bonds formation. 

Cimilli S, Nergis F B U and Candan C (2008), Modeling of heat transfer measurement unit for cotton plain knitted fabric using a finite element method . Text Res 7,78(1), 53-59. 

MMcf—A natural gas measurement unit for 1,000,000 cubic feet. 

The analytical sensitivity offers the advantage of being relatively insensitive to amplification factors. For example, increasing the gain of an instrument by a factor of five will produce a fivefold increase in m. Ordinarily, however, this increase will be accompanied by a corresponding increase in Sj, thus leaving the analytical sensitivity more or less constant. A second advantage of analytical sensitivity is that it is independent of the measurement units for 5. 

Definition Number and reference together expressing magnitude of a quantity [25]. Description It is the product of a number and the measurement unit, for example, 0.15 kg. 

Description Measurement results for the distances between the Earth and the Moon and between Paris and London are, for example, metrologically comparable when they are both metrologically traceable to the same measurement unit, for example, the meter. 

The primary measurement unit for the acoustic environment is decibels (dB). Decibels are an objective measure of sound intensity which is related, albeit nonlinearly, to the subjective impression of loudness. A subjective experience of very loud (e.g a stereo at high volume) might be in the range of 95 to 100 dB. A very quiet domestic setting, on the other hand, would typically measure around 30 dB. 

The electromagnetic spectrum is illustrated in Fig. 2.3. Radiative heat transfer takes place in the IR portion of the spectrum, from 0.75 pm to about 100 pm, although most practical measurements can be made out to about 20 pm (p or pm stands for micrometers or microns. A micron is one-millionth of a meter and the measurement unit for radiant energy wavelength). 

This is the basic unit or measure for electronic magnetic dipole moments in the same sense that h is the measuring unit for angular momentum. 

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